Color

#178c97

#178c97
hex#178c97
rgbrgb(23, 140, 151)
hslhsl(185, 74%, 34%)
oklchoklch(0.586 0.096 205.1)
Closest name: darkcyan (#008b8b)Relative luminance 0.2117

Colors that go with #178c97

Charcoal, Copper and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#972117

#179761 · #174c97

#97178c · #8c9717

Split-complementary

Open in tool →

#97174c · #976117

#611797 · #972117 · #4c9717

Contrast

#178c97 as textRatioAAAA largeAAAFix
Aaon white
4.01:1failpassfail
  • AA: use #15808a as the text (4.68:1)
  • AAA: use #0f5f66 as the text (7.37:1)
  • AA: or shift the background to #141414 (4.59:1)
Aaon black
5.23:1passpassfail
  • AAA: use #1ba5b1 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #178c97 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#178c97 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #178c97
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #178c97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/178c97-a2b8be-df4e88-1f262d-e9f1ee?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md